Finding the Fourth Proportional to 782,195.75, 1,079,430.18 and 424,499.75
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Solution
The fourth proportional to 782,195.75, 1,079,430.18 and 424,499.75 is: 585,809.68
Step by Step Solution
- Step 1: Write the proportion equation
782,195.75 : 1,079,430.18 = 424,499.75 : x - Step 2: Convert to fraction form
782,195.75/1,079,430.18 = 424,499.75/x - Step 3: Cross multiply
782,195.75x = 1,079,430.18 × 424,499.75 - Step 4: Simplify right side
782,195.75x = 458,217,841,552.46 - Step 5: Solve for x
x = 458,217,841,552.46/782,195.75 - Step 6: Final answer
x = 585,809.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.